Centrifugal spreader.



G. e, GRISWOLD. GENTRIFUGAL SPEEADER.

APPLICATION IILED NOV. 29,1907.

921 101 Patea May' 11, 1909.

El x

ATTEST ""0 E1n/11111011 Gleni 'G .Griswold l Dv ATys.

UNITED sTArEs oEEIeE.

GLEN e. eEIswoLD, oE

MADISON, omo.-. 1 v

GENTRIFUGAL sPREADEnQ-j Specification of-Iaett'e'rsPatent. v Patented Application filed November 29, 1907. Serial No. 404,258. i i

may 11', 1909.

v To all lwhom 'it may concern.

of soda, and fertilizers .Beit known that I, GLEN G. GniswoLD, a citizen of the United States, residing at Madison, in the county of Lake and State of Ohio, have invented certain newv and useful Im# provements in Centrifugal Spreaders, and do declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same.

h' y invention'relates to a fertilizer spreader of the centrifugal type, and is an improve- .ment upon the spreader patented to me in the Unlted States June 1], 1907 and numbered 856,632. The present construction is adapted to spread manure, lime, ashes, compost, nitrate and fertllizing conpounds generally, and embodies certain material improvements over the original machine patented as above set forth, as will fully` appear in the description and drawings. p `igure 1 is a perspective elevation of the rear part of a manure spreading wagon containing my invention asan attachment thereto, and Fig. 2 is a vrear elevation thereof omitting eertain-non-essential parts of the wagon. Fig. 3 is a vertical sectional elevation of Fig. 2 front to rear, and Fig. 4 is a plan view of the spreader.

As thus shown, the wagon body is indicated by A and the revolving beater by D, and said beater is driven initially from gear E on rear wheel W and suitable transmitting connections thence to the beater shaft by sprocket chain C and sprocket wheel 2 on the s aft 5 of said beater.

The s reader S-is arranged centrall behind and on a plane somewhat beneat the body A of the wagon and has a width equal to about two thirds vor three fourths and is one ofthe members of the attachment comprising my invention. The shaft 3 of the said spreader is referably somewhat inclined to a verticali axis so as to throw the front of the spreader a little lower than its. rear. Power is conveyed thereto by sprocket chain 4 from shaft 5 of the beater to a countershaft 6 and upon which there is a bevel gear 7 meshing with a bevel gear 8 on the upper end of spreader shaft 3. Said shaft 3 is suspended at the top from a suitable frame lwork F which is rigidly fixed to the wagon as the several views clearly disclose. The

spreader lS is shown in this instance as being of a flat disk pattern provided withaseries of vanes or blades 9.upon one side, and two vanes 10 on the other, so that the spreader is reversible and either side can be used according to the fertilizer to thermore, the said Valles are flexible and adjustable, and to this end said blades are permanentlyiixed .at their inner ends and adjustable at their outer ends in 'a series of holes 12 arranged in the are of a circle. Each blade has a perforated ear 13 ada ted to receive a pin or bolt to fasten in ho es 12, and in such adjustment the'blades flex or curve more or less and change their` throw accordingly. That is, if the ack'orconvex side be used for distribution, I obtaina quick and relatively short throw but if the direction of rotation be reversed a' the-blade be used, the throw will be proportionately increased and,v distribution of the fertilizer will be over a larger area according to the measure of curvature. The same adjustment is provided for blades 10.

New, having reference to the patent aforesaid, it will be observed that in said patent I employed a chute which extended from the beater B on converging lines down to the distributing disk, and that the said chutewas considerably narrowed at its bottorn as compared with its top or middle. It followed that there was constant danger of clogging in the chute, especially with manure, which' in any case' would be objectionable and hence condemn the machine.

have improved upon the said construction by entirely omitting the chute as such, and substituting a hood H of sheet metal bent lengthwise to segmental shape and extending full length over and behind the beater to intereept the fertilizer and direct it downward and so as t0 throw the fertilizer across the axis 3 of the distributer and onto the outer higher portion of the spreader, and since the beater turns from the bottom upward 011 the inside as indicated by arrow b, Fig. 3, the fertilizer is first thrown against the rake R, and then against hood. H. Said rake has a series of teeth -15 corresponding more or less with beater teeth 16 but longer andl flexible, and after the fertilizer passes the said teeth 15, which help further to brake it up, it is thrown against the hood H and then drops freely down upon the distributer, falling for the most art at the center and outer portion thereof about as indicated by arrow a.. In

be distributed. Fur

vzer thrown by the ends of the beater to feed .adjusted so as to be brought into a closer or eonneetion with hood l'I I employ a pair of side guide er guard plates G, which are arranged at.son1ewhat of an inward inclination fromv the ends of hood Il to cause the fertilitoward and fall upon spreader S. These side guards are hinged at their top on the sides of frame F and are adapted to be wider relation as may be found desirable, and the lne-ans of adjustment in this instance are links or brac-es 18, provided with a series of holes and having pin 2() adapted to fasten A them in one position or another as a given ease may require. lt will be notieed that there is no bottom or rear part whatever between the beater and the spreader so that this spaee is wide open for the fertilizer to l falland there is nothing lo impede theI dropping upon the spreader and no means of choking. it as formerly, which I have found j to be an important advantage in this eenstruction over my original ina-shine. Obviously, any suitable means of adjustment for said guards or fenders G may be eniployed, and sueh means may be located in an advantageous or available position.

The foregoing eonstruetion provides an attachment for a fertilizer spreading equipment comprising the spreader itself, the hood and side guards and sundry other parts,

and the operation thereof is so light that it does not very materially increase the draft of the wagon and it will spread any fertilizing substance in a perfect manner from twice to ten times the width of distribution now possible and in such quantities as a particular kind of fertilizer may demand say all the Way from two hundred pounds of eommercial fertilizer and as low as one load of eolnlnon barnyard manure to the aere, or I can increase the distribution per aere to any desired quantity.

What l claim is 1. A manure spreader adapted to operate by centrifugal aetion and oonsisting of a disk and radial vanes thereon fixed at their inner ends and adjustable at their outer ends.

2. A centrifugal fertilizer spreader pro vided with {lexible valles adjustable at their outer ends on the are of a eirele and rigidly secured at their inner ends.

3. A reversible disk shaped fertilizer spreader having vanes on both sides adapted to be bent between their ends and adjustable at their outer ends on the are of a eirele.

In testimony whereof l sign this specification in the presence of two witnesses.

. GLEN G. GRISWOLD.

Witnesses W. W ADLARD, THOMAS E. CRUM. 

